test/CodeGen/builtin-memfns.c

   1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm < %s| FileCheck %s
   2
   3 // CHECK: call void @llvm.memset.p0i8.i32
   4 // CHECK: call void @llvm.memset.p0i8.i32
   5 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32
   6 // CHECK: call void @llvm.memmove.p0i8.p0i8.i32
   7 // CHECK-NOT: __builtin
   8 // CHECK: ret
   9 int main(int argc, char **argv) {
  10   unsigned char a = 0x11223344;
  11   unsigned char b = 0x11223344;
  12   __builtin_bzero(&a, sizeof(a));
  13   __builtin_memset(&a, 0, sizeof(a));
  14   __builtin_memcpy(&a, &b, sizeof(a));
  15   __builtin_memmove(&a, &b, sizeof(a));
  16   return 0;
  17 }